ScienceArthrosis - A new discoveryTo view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoScience09/08/2018September 8, 2018It was long thought that stiff and painful joints in old age were purely a result of wear and tear. That was always the explanation given for osteoarthrosis. But it's now emerged that's not the case.https://p.dw.com/p/34VQyAdvertisement